<template>
  <div class="left-category">
    <ul class="app-left-mune">
      <li class="mune-item" v-for="item in goodsList" :key="item.id" @mouseenter="getList(item.id)">
        <RouterLink to="/">{{ item.name }}</RouterLink>
        <template v-for="item2 in item.children">
          <RouterLink to="/">{{ item2.name }}</RouterLink>
        </template>
      </li>
    </ul>

    <!-- 弹层 -->
    <div class="layer">
      <h4>分类推荐 <small>根据您的购买或浏览记录推荐</small></h4>
      <ul>
        <li v-for="item in list" :key="item.id">
          <RouterLink to="/">
            <img :src="item.picture" alt="" />
            <div class="info">
              <p class="name ellipsis-2">{{ item.name }}</p>
              <p class="desc ellipsis">{{ item.desc }}</p>
              <p class="price"><i>¥</i>{{ item.price }}</p>
            </div>
          </RouterLink>
        </li>
      </ul>
    </div>
  </div>
</template>

<script>
import { reactive, toRefs, ref, computed, watch, render } from "vue";
import { useStore } from "vuex";
import { useRouter } from "vue-router";

export default {
  name: "left-category",
  setup() {
    const router = useRouter();
    const store = useStore();

    const brand = reactive({
      id: "brand",
      name: "品牌",
      children: [{ id: "brand-chilren", name: "品牌推荐" }],
    });

    // 获取商品数据
    const goodsList = computed(() => {
      // 转换为数组
      const renderList = store.state.category.list.map((item) => {
        return {
          name: item.name,
          id: item.id,
          //  截取数组 数据过多回报错
          children: item.children && item.children.slice(0, 2),
        };
      });
      renderList.push(brand);
      return renderList;
    });

    let list = ref(null);

    let categortId = ref(null);

    // 获取左侧边栏数据
    const getList = (id) => {
      goodsList.value.find((item) => {
        if(item.id == id){
            console.log(item);
        }
      });
    };

    const data = reactive({});

    return { ...toRefs(data), goodsList, list,getList };
  },
};
</script>
<style scoped lang='less'>
.left-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  .app-left-mune {
    .mune-item {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      &:hover {
        background: @xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
}
.layer {
  width: 990px;
  height: 500px;
  position: absolute;
  background: rgba(255, 255, 255, 0.8);
  top: 0;
  left: 250px;
  padding: 0 15px;
  //   display: none;
  h4 {
    font-size: 20px;
    font-weight: normal;
    line-height: 80px;
    small {
      font-size: 16px;
      color: #666;
    }
  }
  ul {
    display: flex;
    flex-wrap: wrap;
    li {
      width: 310px;
      height: 120px;
      margin-right: 15px;
      margin-bottom: 15px;
      border: 1px solid #eee;
      border-radius: 4px;
      background: #fff;
      &:nth-child(3n) {
        margin-right: 0;
      }
      a {
        display: flex;
        width: 100%;
        height: 100%;
        align-items: center;
        padding: 10px;
        img {
          width: 95px;
          height: 95px;
        }
        .info {
          padding-left: 10px;
          line-height: 24px;
          width: 190px;
          .name {
            font-size: 16px;
            color: #666;
          }
          .desc {
            color: #999;
          }
          .price {
            font-size: 22px;
            color: @priceColor;
            i {
              font-size: 16px;
            }
          }
        }
      }
    }
  }
}
</style>
